Moritz levi



(No Model.)

M. LEVI.

'ELECTRIC ADVERTISING GLOGK. No. 437,905. `Patented 0013.-?, 1890.

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UNITED STATES PATENT OEEICE.

MORITZ LEVI, OF NEWY YORK, N. Y., ASSIGNOR OF ONE-HALF TO RASMUS FORSHOLM, OF SAME PLACE.

ELECTRIC ADVERTISING-CLOCK.

SPECIFICATION forming' part 0f Letters Patent N0. 437,905, dated October 7, 1890.

Application led .Tune 26, 1890. Serial No. 356,756. (No model.)

To all whom t may concern: B, said arm and spring being in circuit with Be it known that LMORITZ LEVI, of the city, a battery that is preferably arranged in the county, and State of New York, a citizen of lower part of the clock-casing. The rotary the German Empire, have invented certain arm d is provided with a platinum contact-pin 5 new and useful Improvements in Electric Adthat forms at each rotation of the arm Contact 5 5 vertising-Olocks, of which the following is a with the spring d', so as to close and interrupt specification. Y thereby at regular intervals of time the cir- This invention relates to an improved adcuit of the battery. The circuit-closing arm vertising-clock of that class in which a numd is electrically connected with the frame of 1o ber of sheets containing announcements are t-he clock-train and with an electro-magnet E, 6o applied to an interniittently-rotating drum or that islocated in the battery-circuit, said eleccylinder and successively exhibited in a front tro-magnet operating an armature-lever E Opening of the clock-case by the action of which is fulcrumed to a bracket-arm c at the electrical agencies. interior f the casing B. The upper end of x The invention consists of a clock-movement the armature-lever is connected by a spiral 65 that is provided with a circuit-closing device spring e with the casing B, while the lower by which the armature of an electro-magnet end of the armature-lever engages by a pivis intermittently actuated,sothat it transmits oted and spring-actuated pawl f a ratchetby a pawl-and-ratchet device intermittent rowheel f on the shaft of a drum or cylinder F,

2o tary motion to a drum to which a number of which cylinder turns in bracket-shaped bear- 7o sheets that contain announcements are apings f2, applied to the clock-casing. A checkplied, said announcements being successively pawl f3 engages the ratchet-wheel f and preexhibited through an opening in the front vents it from being turned in the opposite diwall ofthe clock-case, as will be fully described rection. A stop f4 retains the lower end of hereinafter, and finally pointed out in the the armature-lever E when the same is not 75 claims. attracted by the electro-magnet E.

In the accompanying drawings, Figure l To the circumference of the drum F is aprepresents a front elevation of my improved plied a number of advertising-sheets g by electricadvertising-clock. Fig.2isasectional means ofv thin wires that are inserted into 3o front elevation of the interior construction of longitudinal grooves arranged equidistantly 8o the same, the front wall of the clock-casing on the surface of the drum, said sheets conbeing removed, so as to show the interior taining the announcements that are to be parts. Fig. 3 is a vertical transverse section exhibited in the front opening of the clockon the line 2 2, Fig. 2; and Fig. 4. is a vertical casing B. The outer ends of the sheets g are transverse section of the drum to which the held on the drum F by means of a suitable 85 advertising-sheets are applied. spring or other retaining device g', that is ap- Similar letters of reference indicate correplied'to the rear wall of the clock-casing besponding parts. low the clock-movement A, said spring press- Referring to the drawings, A represents a ing on the sheets, so as to permit them to 4o clock-movement, and B the casing of the same. drop successively as one sheet after the other 9o In the front wall of the casing B is arranged passes below the retaining-spring, as shown an oblong or other opening b, in which a numin Fig. 4. ber of announcements are printed on suitable My improved advertising-clock operates as sheets, which are successively exhibited. follows: At each rotation of the arm d of the The clock-movement A is arranged at the clock-train it forms contact with the spring 95 `upper part of the case and provided with a d, and closes thereby the circuit of the batcircuit-closing device O, which is composed of tery, the current energizing the cores of the a rotating arm d on one of the arbors of the electro-magnet, so that the fulcrumed armaclock-train, and a contact-spring d', that is atture-lever E is attracted. The pawl f on the 5o tached to an insulated block d2 of the casing armature-lever engages thereby the ratchetroc Wheelf on the shaft of the drum and causes the turning of the latter for the distance of a tooth. By the intermittent. rotary motion that is imparted by the armature and the paWl-and-ratchet mechanism to the drum the sheets containing the announcements are successively dropped and exhibited in the front opening of the clock-casing. The dial of the clock is arranged at the front Wall of the clock above the opening b, the hands being operated by the clock-train in the usual manner, which serves also to operate the circuit-closing device, so that the armature-lever and pawland-ratchet mechanism are operated and an intermittent rotary motion imparted to the drum, by which the sheets containing the announcements are successively dropped and exhibited.

Having thus described my invention, I claim as new, and desire to secure by Letters Patentl. The combination of a clock-movement, a clock-casing having a front opening, a circuit-closing device operatedintermittently by said clock-movement, an electro-magnet arranged in circuit With the circuit-closing device, an armature -lever operated by said electro-magnet, a drum having a number of sheets containing announcements, and a pawland-ratchet mechanism by which the armatu re-lever impartsintermittently-rotating motion to the drum so as to exhibit said sheets through the front opening of the clock-casing, substantially as set forth.

2. The combination of a clock-movement, a circnit-closing device operated by said clockmovement, an electro-magnet arranged in circuit with said circuit-closing device, an armature-lever operated by said magnet, a drum having a number of sheets containing announcem ents attached to the circumference of the drum, a paWl-andratchet device for intermittently rotating the drum, and a retaining device for holding said sheets on thecircumference of thedrum and successively dropping them forexhibition, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

MORITZ LEvI.

\Vitnesses:

H. STEINERT, MAX STEINERT. 

